Sprayer



SPRAYER V. SANTARELL! iled Nov. 4, 1949 INVENTOR. mvceur snurnnau. BY firm/(way April 22, 1952 Patented Apr. 22, 1952 umreo STATES rareur OFFICE SPRAYER Vincent Santarelli, Detroit, Mich.

Application November 4, 1949, Serial No. 125,562

4 Claims. 1

My invention relates to a new and useful improvement in a sprayer adapted for pumping liquids either in a jet or a spray. While the invention is adapted for various purposes, such as fire fighting, it is particularly adapted for use as a garden sprayer for spraying plants vegetables as well as fruit.

In such a type of sprayeiyit is common to have a liquid-containing tank in which is positioned a pump barrel, which is stationary and longitudinally of which reciprocates a rod or tube carrying a plunger. It is an object of the present invention to provide a sprayer of this class in which the pump barrel is eliminated and in which a tube is reciprocated which carries a plunger and which also carries a liquid-receiving tank, so that the liquid forced upwardly through the tube may be deposited in the tank and then fed from the tank outwardly through the outlet nozzle, thus assuring a constant pressure with a steady flow or stream and reducing the pumping exertion to a minimum.

Another object. or the invention is the provision of a sprayer of this class which will be simple in structure, economical of manufacture, durable,

compact, and highly efficient in use.

Another object of the invention is the provision in a sprayer of this class of a construction whereby the opening through the top of the tank for the reciprocating member may be reduced to narrow dimensions.

Other objects will appear hereinafter.

It is recognized that various modifications and changes may be made in the detail of structure illustrated, and it is intended that the illustra-' tion of the invention set out herein is but a preferred embodiment and may be modified.

Forming a part of this specification are drawing in which:

Fig. 1 is a side elevational View of the invention;

Fig. 2 is a sectional view taken on line 2---2 of Fig. 1;

Fig. 3 is a sectional. view Fig. 1;

Fig. 4 is a fragmentary sectional view similar to Fig. 2, showing some of the parts enlarged.

In the drawings I have illustrated the invention comprising a liquidureceiving tank 9 havtaken on line 3 3 of ing, a bottom I extending below which is an apron H to provide a compartment E2, in which is positioned a well I? tapered on its inner side and opening into the tank 9 through an opening in the "bottom it. Fixedly mounted on the top l4. and projecting therethrough is a fitting 45 having a bore l6 formed therethrough. Slidably projected through this bore 16 is a tube or pipe H which threads into the fitting l8 mounted in the top of the container l9. Secured at one end to the lower end of the container is a pipe or tube 20 having its upper end formed concave to provide a seat 22 for the conical end face 23 of the pipe 11. The construction is such that as the pipe H is threaded into the fitting l8, it will engage the concave face or seat-forming portion 22 with its conical face 23 and provide a leakproof connection. This pipe or tube 20 extends through the bottom 2! of the liquidcontainer or receiver l9, and the pipe 20 is provided at its lower end with a fitting 25, on which is threaded a retainer 26 carrying a ball valve 27. Mounted on this fitting 25 is also a flexible cup 28, formed from rubber or other suitable flexible material. The construction is such that as the rod I7 is moved downwardly, "he cup 28 engaging in the well l3 will move into the narrower portion of the well so as to engage the inner surface of the well l3 and thus force the water which has flowed into the well from the interior of the tank 9 upwardly through the tube 28, raising the ball valve 21 from the seat shown in Fig. 2. Formed in the lower end of the tube 28 is a slot 43, so that the liquid will flow through this slot into the interior of the tube 2!). On the reverse movement, the ball 21 will move downwardly onto its seat, as shown in Fig. 2, so as to prevent the return fiow of the liquid out of the tube 20. As this liquid flows upwardly through the tube 20, it will be deposited in the receiver or receptacle I9 through the openings 29. As the pumping action continues, the liquid may then flow from the receptacle is through the openings 29 or 30 and pass upwardly through the tubes 20 and H.

Fixedly mounted on the upper end of the tube 41 is a fitting 3| having a chamber 32 formed therein communicating with a passage 33 extending through the nozzle 34, which extends laterally from the fitting or head 3|. A suitable flexible hose or other conduit is attached to the nozzle 3s to convey the liquid to the desired position.

Mounted on and projecting outwardly from the apron H is a bracket 35, on which is swingably mounted by means of the bolt 31 a rocker arm 35 having a hand grip 38 on its end, whereby the operator carrying the tank 9 may rock the arm 36. A rod 39 is provided with the angularly turned end 40, which extends through the rocker arm 36. This rod 39 is provided with the upper ,angularly turned end 41, which extends through the opening 42 formed in the head or fitting 3|,

so that as arm 36 is rocked on its pivot, the rod 39 will effect a reciprocation of the tubes H and 20. In this reciprocation, the receiver or container I9 is also caused to reciprocate, as it is fixedly mounted on the tube or pipe 20. A suitable strap 44 is attached to the tank whereby the user may carry the tank on the back.

With a sprayer conducted in this manner, a smooth operation of the tube H while reciprocating is obtained, while at the same time a very small opening is provided in the top Hi. By providing the receptacle or receiver is and having the outlets provided as indicated, the liquid when forced from the conduit attached to the nozzle 34 will flow in a steady stream so that the pulsating effect commonly obtained in reciprocating pumps is thus avoided. By constructing the mechanism in this manner, a cheap and light construction is provided, and one which is also very durable.

What I claim is:

1. A sprayer of the class described, comprising a liquid receiving tank having a top and a bottom; a tubular fitting fixedly mounted in said top; a

liquid container positioned in said tank and having a top and a bottom; a tubular fitting fixedly mounted in the top of said container; a tube threadably connected at one end with said fitting and communicating at its connected end with ing downwardly therefrom and opening at its upper end into the interior of said tank, said well being inclined downwardly to smaller cross sectional area; and a plunger mounted on the lower end of said second named tube and adapted upon reciprocation of said second named tube for reciprocating in said well, said plunger being of less outside diameter than the inside diameter of the open end of said well, the lower end of said second named tube being open for receiving liquid from said well upon movement of said plunger inwardly of said well; and a check valve at the lower end of said second named tube for preventing flow of liquid downwardly out of said second named tube.

2. A sprayer of the class described, comprising a liquid receiving tank having a top and a bottom; a tube slidably projected through said top; a liquid container positioned within said tank and having a top and a bottom, said tubecommunieating at one end through the top of said container; a tube projecting through the bottom of said container and in fixed relation thereto and in communication at its inner end with the inner end of said first named tube in sealing relation thereto; a well on the bottom of said tank communicating with the interior thereof; and a plunger on the outer end'of said second named tube in alignment with said well and adapted for entry into said well for forcing liquid therefrom upwardly through said second named tube, said second named tube being in communication with said container through lateral openings; and a check valve carried by the outer end of said second named tube for preventing flow of liquid out of said second named tube into said well.

3. A sprayer of the class described, comprising a liquid receiving tank having a top and a bottom; a tube slidably projected through said top; a liquid container positioned within said tank and having a top and a bottom, said tube communicating at one end through the top of said container; a tube projecting through the bottom of said container and in fixed relation thereto and in communication at its inner end with the inner end of said first named tube in sealing relation thereto; a well on the bottom of said tank communicating with the interior thereof; and a plunger on the outer end of said second named tube in alignment with said well and adapted for entry into said well for,forcing liquid therefrom upwardly through said second named tube, said second named tube being in communication with said container through lateral openings; and a check valve carried by the outer end of said second named tube for preventing flow of liquid out of said second named tube into said well; and a handle for efiecting reciprocation of said tubes and said container in unison relatively to said tank.

4. A sprayer of the class described, comprising a liquid receiving tank having a top and a bottom; a tube slidably projected at one end through said top; a liquid container positioned with said tank, said tube communicating at its inner end with the interior of said container; a second tube extending at one end into said container, in fixed relation thereto, and projecting at its opposite end outwardly beyond said container, and communicating with the interior of said container through lateral openings, the inner ends of said tubes being in sealing engagement and in communication with each other; an internally threaded fitting for securing said ends of said tubes in engagement in a leak proof connection; a well on said tank communicating with the interior thereof; and a plunger for entering said well and forcing liquid therefrom upwardly through said second named tube; and a check valve on said second named tube for preventing reverse flow of liquid therefrom.

VINCENT SANTARELLI.

REFERENCES GITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 642,119 Heysinger Jan. 30, 1900 778,757 McCahill Dec. 2'7, 1904 963,626 McCarty July 5, 1910 FOREIGN PATENTS Number Country Date 28,451 Great Britain 1897 

